New Year's Day
New Year's Day (obs.)
Coming of Age Day
Foundation Day
Vernal Equinox Day
Shōwa Day
Constitution Memorial Day
Greenery Day
Children's Day
Marine Day
Respect-for-Aged Day
Autumnal Equinox Day
Health and Sports Day
Culture Day
Labor Thanksgiving Day
Emperor's Birthday
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 ‹ 1976
1977
1978 › 
# Date Public holiday
1Saturday, 1 January 1977 New Year's Day
Monday, 3 January 1977 New Year's Day (observance)
2Monday, 10 January 1977 Coming of Age Day
3Friday, 11 February 1977 Foundation Day
4Sunday, 20 March 1977 Vernal Equinox Day
5Friday, 29 April 1977 Shōwa Day
6Tuesday, 3 May 1977 Constitution Memorial Day
7Wednesday, 4 May 1977 Greenery Day
8Thursday, 5 May 1977 Children's Day
9Monday, 18 July 1977 Marine Day
10Monday, 19 September 1977 Respect-for-Aged Day
11Friday, 23 September 1977 Autumnal Equinox Day
12Monday, 10 October 1977 Health and Sports Day
13Thursday, 3 November 1977 Culture Day
14Wednesday, 23 November 1977 Labor Thanksgiving Day
15Friday, 23 December 1977 Emperor's Birthday